Apparatus for inking endless ribbons



Aug. 30, 1932. i PARADlSE 1,874,059

APPARATUS FOR INKING ENDLESS RIBBONS Filed Dec. 18, 1929 INVENTOR WITNESSES ertrmwl faradlse W BY g W ATTORNEYS Patented Aug. 30, 1932 pairs TA- BEnTnAnnrARADIsn, or :BnooKL'Y v, NEW Yonx ArrAnArUs role INKING'ENDLESS fermions 1 Application 'filed. Deeember18, 1929. semi No, 415,029. Y i j H g}:

. This invention relates to apparatus for inking endless ribbons. V j i The principal object of this invention is toprovide apparatus whereby the required 5 ink surface may be easily applied to an endless typewriter ribbon. V j Another ob 'ect of-this invention is to provide a device upon which theribbon to be inked may be easily and readily applied for inking, and further, to permit easy removal therefrom. V

Still other objects of this invention reside in the simplicity of instruction, the economy with'which it may be produced and the high 5 degree of efic'iency derivable therefrom.

Numerous other objects of this invention will be readily apparent from an eXamination of the following specification taken in conjunction with'the accompanying drawing, in whichj r H Figure 1-is a vertical sectional View taken on the line 11 of Figure 2 showing by dotted lines the ribbon-carrying spindles raised to inoperative position. I

Figure 2 is a top plan view showingpart of the structure cut away to illustrate the ball bearing assembly of the ribbon-carrying spindles. I r i v 'Referring more specifically to the drawing, there is the base 10 upon which is placed a reservoir-or container 11 which holds the ink 12 to be applied by my apparatus. An-

inking roller 13 is mounted on a shaft 1-1 so as to be rotatable therewith, within the res- 35 ervoir 11, partially immersed in the ink 12. A suitable driving means, such for example a pulley 15 is mounted upon the shaft 14 so that rotary motion may be transmitted from some external source to the inking roller 13. Frictionally engaging the inking roller 13 is another and preferably smaller idle roller 16 in contact therewith for removing any surplus ink from the surface of the inking roller 13.

The roller 16, however, may be rotated by an external drive and means may be provided to bring the roller 16 into contact with the inking roller 13 so as to regulate the amountof ink carried up by the inking 50 roller 13.

my apparatus raised normally to inoperative to e A standard 17 is mounted on the base 10 for supporting a lever 1 8Iwhich is pivoted between itsends to the standard by a pin or other 'fulcruming device19. Positioned at one end of this lever '18 are a pair of associated rotatably-mounted ,spindles 20 equipped with suitable anti-friction bear: ings 21. These. spindles 'arespaced apart and are parallel to each other and project laterally from the lever. They are adapted to support an endless ribbon or ribbon ma terial 22'from which endless ribbons are cut. .In operation, the ribbon is brought into contact .with the inking roller between one of the spindles 20 and the inking roller .13. To'permit easy application or removal of the ribbon 22 to or from the spindles 20, the latter may be tapered as indicated at 23.

Agravity tension roller 2 1 is provided to maintain thetrequired tension of the ribbon 22 and to prevent theribbon 22 from slipping on the spindles while the'device is in use. This tension roller 24 is preferably fluted as at 25 to give a minimum of contact with the ribbon. The tension roller 24 is rotatably "i5 mounted upon a shaft 26 at one end-of a lever 27 which is pivoted to a bracket 28 onthe lever 18 byra bolt 29. J

I To maintain the ribbon'carrying portion of 4 position, a contractile spring 30 or its equiva lent is provided. This. spring has one end 31 suitably fastened to the base 10 and the other end fastened as at 32 to a point intermediate M the fulcrum 19of the lever 18 and the free "as end thereof. It will, therefore, be apparent I that the contractile spring normally urges the ribbon carrying portion. away from the inking roller 13.

'The standard 17 hasan angularly projecting arm33 provided at its upper end with a laterally projecting pin 34 located in thepath 'of movement of the end 35 of the lever27 and to cause this end of the lever to be d'e- M pressed when the ribbon carrying portion of us the lever 18 is raised bythe action of the conso that the ribbon may beremoved from; the 1110 spindles with facility and another ribbon applied. i

The dotted lines indicate the spindles raised and out of contact with the inking roller 13 due to the action of the contractile tact with the inkingroller 13 and for this purpose any suitable means may be used, as

for example a fieXible-c0rd 36 passing'over the pulley 37 and having its ends connectedto the free end of the lever 18 and a treadle respectively. i

In operation, the contractile spring urges the free end of the lever 18 downward, therebyraising the ribbon carrying spindles 20. This, at the same time, causes the lever 27 to contact at with the pin 3% raising the gravity tension roller 24. The endless rib bon 22 may then be applied to the spindles 20. A continuous rotary motion is imparted to the inking roller 13 from some external source through the pulley 15 and shaft 14, and as the inking roller rotates, ink is taken upon its surface from the supply 12 in the reservoir 11.. Roller 16in frictional engagement with the inking roller 13 is rotated, thereby causing any surplus ink to be removed. The ribbon is brought into contact with the inking roll 13 by movingthefie'xible cord 36 in the direction indicated in the drawing, by the arrow. When the ribbon carrying spindles 20 are lowered, the lever 27 is correspond ingly lowered from contact with the pin" 34c and the fluted tension roller 24 is'permitt'ed to rest upon the ribbon 22. The weight of the tension roller 24: maintains the required ten,- sion upon the ribbon 22 and prevents its accidental slipping on the spindles 20 while the ribbon is being inked. The ribbon 22 is brought into contact with the inking roller 13 between one of the spindles and the inking roller. This permits the application of any degree of pressure in bringing the ribbon 22 into contact with the inking'roller 13 without causing any sagging or stretching of the ribbon 22. As a positive'frictional contact is thereby made, the rotary motion of the inking roller 13 is transmitted to the endless ribbon 22' causing it to move relatively with the inkingroller 13. This results in having the required amount of ink applied evenly to the entire surface of the ribbon 22. T In using the term ribbon it is to be understood that I use the-same in the broadest possible sense to include any endless. band or material to be inked.

While I have specifically described the structure and operation of the form of my invention shown in the drawings, it' will befun- 1. A device for inking endless ribbons in-' eluding a rotatably mounted inking roller, a pluralityof associated rotatablymounted spindles for carrying an endless'ribbon, means for moving said spindles with respect to said inking ;rol l-er, said means including a pivoted lever and an operating spring therefor, andmeans for applying tension to the endless ribbon, said tensioning means'consisting ot-a'lever, a roller carried thereby, and means for engaging the free end of said latterlever for depressingthe same and moving said roller from the ribbon. V

2. In an inking mechanism, the combination with an ink-supplydevice, of a movable member normally spaced from s'aid'ink-sup-.

ply device, and'means' on said'member for movably supporting a ribbon to be inked including tensioning means, said tensioning means comprising a fluted'roller and means for moving said fluted tensioning rollerto an inactive position. A

3., In an inking mechanism, the combina tion with an ink-supply device of a support, a member pivoted to said support and movable toward or away from the said ink-supply device, mean's'on said member for movably supporting a ribbon to be inked including tensioning means, said tensioning means comprising a lever pivoted inter-mediate its ends to. said member and a gravity tension roller carried bycne end of said lever, and means engageable with the free endofsaid lever so constructed and arranged that upon movement of the memberaway from saidinksupply device the lever will be depressed and the tension roller moved from the ribbon. I

' Signed at Brooklyn in the county of Kings and State of New York this 12th day'of December, A. D. nineteen hundred twenty-nine.

derstood that my invention is not confined V to. thespecific details shown and described, as I 

